I have the following
if('y' == input("Enter y to continue")):
# do something
But it doesn't work, no matter what I type?
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9Works fine here - what exactly do you mean by "doesn't work"?Tim Pietzcker– Tim Pietzcker2012-01-08 16:53:10 +00:00Commented Jan 8, 2012 at 16:53
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I mean, it doesn't enter the conditional lines, even when I type 'y'. I'm running it from a Windows 7 command line.x74x61– x74x612012-01-08 16:57:00 +00:00Commented Jan 8, 2012 at 16:57
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what are you doing inside the conditional? paste the code.soulcheck– soulcheck2012-01-08 17:04:22 +00:00Commented Jan 8, 2012 at 17:04
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5 Answers
This is a known bug on windows, you can identify it by doing print(repr(input("put y: "))
Try this
input("put y:").strip().lower() == "y"
7 Comments
x74x61
Yeah, windows turns it into 'y\r'. Thanks for clarifying!
Tim Pietzcker
I can't reproduce that either (even after adding the missing parenthesis). Could you link to the bug report? In which Python versions is it present?
Voo
Can't reproduce it either - i.e. it works at least fine under my Win7 x64 install. Now crossplatform terminal support has more than a few "rough edges" especially under windows, so maybe it's a bug in older Windows versions?
x74x61
I run Windows 7 x64, all patched up, and yet I can reproduce it.
Tim Pietzcker
@x74x61: Which exact Python version?
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I can't reproduce this here:
>>> if('y' == input("Enter y to continue: ")):
... print("Yeah!")
...
Enter y to continue: y
Yeah!
>>>
But I would do it differently anyway:
answer = input("Enter y to continue: ")
if answer.lower().startswith("y"):
print("Yeah!")
also handles Y, Yes!, yes, please... etc. correctly.
3 Comments
x74x61
your own solution indeed does work, but I still can't figure out why mine doesn't.
Tim Pietzcker
Maybe you should copy the relevant contents of your Python shell and post them in your question. You must be doing something differently.
x74x61
Tim, I think the problem is solved, but your solution is still better. I didn't do anything differently. See accepted answer.
Works fine for me on 3.2.1 on Windows 7 x64:
>>> if input("Enter y to continue") == 'y': print("ok")
Enter y to continuey
ok
("continuey" is correct, it's just "continue" + my "y" input.)
Comments
I've just come across this issue, this is how I solved it (Python 3.4.1):
i = input ('Enter y to continue: ')
validity = i == 'y'
if validity == True:
#do something
By using the Boolean type to identify whether the input was equal to y you are avoiding the bug, it's extremely simple too.
Comments
use if input("Enter y to continue").lower().startswith('y'):.
